To clarify, I'm talking about hits happening in the US, but ordered from a website outside the US, over which the US has no jurisdiction, and therefore can't take down.
(Look at my other comment in this thread for another example).
You should still be able to link to the site. Censorship is censorship.
If the site is outside of the US but is designed for people in the US to use, it's going to need to accept payment from people in the US. The way you make this site go away is by stopping the flow of money, not by telling people not to tell other people about it. The first way works. The second way does not.
To bring this back to P2P, the reason they can't go after the money is there is no money. That's what annoys the governments so much; people are trading movies for free. This makes it not-very-illegal and very hard to stop.
(Look at my other comment in this thread for another example).